Rockwell Automation Allen-Bradley 140G Guía De Resolución De Problemas página 3

Table 3: LED Troubleshooting for 140G2-N, NS Frame DIP Trip Units
Signal
Normal Operation
On and Fixed
Flashing Fast (2Hz)
Action needed
On and Fixed
Slow (0,5Hz)
Fast (2Hz)
Flashing
2 flashes every 2s
3 flashes every 3s
4 flashes every 4s
* Not applicable on the following trip unit types: G - DIP LS/I, P - MCP (DIP I)
Table 4: Action Codes and Resolution Operations
Operation
Action
A Circuit-breaker tripped normally. Check the system to nd the fault.
Error in setting of the DIP switches. Check and correct the following conditions:
• I1≥I2 or I2≥I3 or I1≥I3
B1
• Neutral setting @ 50% and TA < 100A
Error in setting of the DIP switches. Check and correct the following conditions:
• All the DIP switches Of L are in the ON position
• I1≥I2 or I2≥I3
B2 • Iu<(2·In·I1) in the case where InN=200%
• I4<0,3 In (with In=100A), 0.25 In (with In=400A) or 0,2 In(for all other sizes), in the absence of
auxiliary power supply
• t2>0.4s or t4>0.4s or I4>1200A (in the case of UL circuit-breaker)
Check the connection between trip unit and accessories (Rating Plug, trip coil,sensors,etc...). If
C changing a rating plug, confirm the plug is equal to or LOWER than the capacity of the unit. A
higher rating plug is not valid.
D Carry out installation. Follow all instructions on the instruction sheet.
Replace battery in 140G-ELTT.
E
Contact Rockwell Automation for assistance. Please collect the following information:
• details about the state of the LEDs on the unit
F
• a picture of the DIP switch settings on the unit
• the catalog number of the unit
Publication 140G-IN250B-MU-P - November 2023
LED AND COLOR
Red
Yellow Green
L S I G
x
x
x
x
x
x
-
x
x
x x x x
x x x x
x x x x
x x x x
x x x x
x x x x
LED Troubleshooting Guide for DIP Trip Units
Device active
Condition
L
Protection trip.
Pre-alarm L (0,9*I1<I<1,2*I1)
x
Protection delay. L alarm (I>1,2*I1)
Protection delay. S alarm (I>I2)
N/A - No delay for protection.
Protection delay. G alarm (I>I4)
Hardware trip
x
Calibration
x Software incompatibility*
CB state not defined*
x
Current sensor disconnected
Internal conguration error
x
Rating plug installation
x
Low battery*
Trip coil
DIP (Parameter) Incongruence
x
Rating plug error
Maintenance
x
Error on local bus*
x
DIR 10005909295 (Version 01)
3
Action
A
C
F
F
C
C
F
D
E
C
B 2
C/D
F
F
Table 4